<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

    <script>
        let arr = [11,54,23,76,43,65,88,90,22];

        arr.forEach((item,index) => {
            alert(`第${index}个：${item}`);
        });

    </script>

</head>
<body>

</body>
</html>